Nonflammable Gas Mixture: Carbon Monoxide / Hydrogen Sulfide / Methane /
Nitrogen / Oxygen
002253
Synthetic/Analytical chemistry.
4/19/2013.
Material Safety Data Sheet
Product name
AIRGAS INC., on behalf of its subsidiaries
259 North Radnor-Chester Road
Suite 100
Radnor, PA 19087-5283
1-610-687-5253
Product use
MSDS #
Date of
Preparation/Revision
In case of emergency
Section 1. Chemical product and company identification
Nonflammable Gas Mixture: Carbon Monoxide / Hydrogen Sulfide / Methane /
Nitrogen / Oxygen
:
:
::Supplier
1-866-734-3438
:
:
Inhalation Dermal Eyes
Section 2. Hazards identification
Routes of entry
Potential acute health effects
Very toxic by inhalation.
Moderately irritating to eyes. Contact with rapidly expanding gas may cause burns or
frostbite.
Ingestion is not a normal route of exposure for gases
Moderately irritating to the skin. Contact with rapidly expanding gas may cause burns or
frostbite.
Eyes
Skin
Inhalation
Ingestion
Physical state
Gas.
See toxicological information (Section 11)
DANGER!
MAY BE FATAL IF INHALED.
MAY CAUSE EYE AND SKIN IRRITATION.
CONTAINS MATERIAL THAT MAY CAUSE TARGET ORGAN DAMAGE, BASED ON
ANIMAL DATA.
CONTENTS UNDER PRESSURE.
Do not puncture or incinerate container. Do not breathe gas. Avoid contact with eyes,
skin and clothing. Contains material that may cause target organ damage, based on
animal data. Use only with adequate ventilation. Wash thoroughly after handling. Keep
container closed.
:
:
:
:
:
:
Medical conditions
aggravated by overexposure
Pre-existing disorders involving any target organs mentioned in this MSDS as being at
risk may be aggravated by over-exposure to this product.
:
Contact with rapidly expanding gases can cause frostbite.
Target organs
:
Contains material which may cause damage to the following organs: blood, lungs, the
nervous system, heart, cardiovascular system, upper respiratory tract, eyes, central
nervous system (CNS).
Potential chronic health effects
Chronic effects
:
Contains material that may cause target organ damage, based on animal data.
Target organs
:
Contains material which may cause damage to the following organs: blood, lungs, the
nervous system, heart, cardiovascular system, upper respiratory tract, eyes, central
nervous system (CNS).
Page: 1/9
Build 1.1
Nonflammable Gas Mixture: Carbon Monoxide / Hydrogen Sulfide / Methane / Nitrogen / Oxygen
Nitrogen
7727-37-9
72 - 99
Oxygen Depletion [Asphyxiant]
Oxygen
7782-44-7
1 - 19.5
Carbon Monoxide
630-08-0
0.0025 - 5
ACGIH TLV (United States, 2/2010).
TWA: 29 mg/m³ 8 hour(s).
TWA: 25 ppm 8 hour(s).
NIOSH REL (United States, 6/2009).
CEIL: 229 mg/m³
CEIL: 200 ppm
TWA: 40 mg/m³ 10 hour(s).
TWA: 35 ppm 10 hour(s).
OSHA PEL (United States, 6/2010).
TWA: 55 mg/m³ 8 hour(s).
TWA: 50 ppm 8 hour(s).
OSHA PEL 1989 (United States, 3/1989).
CEIL: 229 mg/m³
CEIL: 200 ppm
TWA: 40 mg/m³ 8 hour(s).
TWA: 35 ppm 8 hour(s).
Methane
74-82-8
0.1 - 3
ACGIH TLV (United States, 2/2010).
TWA: 1000 ppm 8 hour(s).
Hydrogen Sulfide
7783-06-4
0.001 - 1
ACGIH TLV (United States, 2/2010).
STEL: 5 ppm 15 minute(s).
TWA: 1 ppm 8 hour(s).
NIOSH REL (United States, 6/2009).
CEIL: 15 mg/m³ 10 minute(s).
CEIL: 10 ppm 10 minute(s).
OSHA PEL 1989 (United States, 3/1989).
STEL: 21 mg/m³ 15 minute(s).
STEL: 15 ppm 15 minute(s).
TWA: 14 mg/m³ 8 hour(s).
TWA: 10 ppm 8 hour(s).
OSHA PEL Z2 (United States, 11/2006).
AMP: 50 ppm 10 minute(s).
CEIL: 20 ppm
Section 3. Composition, Information on Ingredients
Name
% Volume
Exposure limits
CAS number
As this product is a gas, refer to the inhalation section.
Check for and remove any contact lenses. Immediately flush eyes with plenty of water
for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical
attention immediately.
In case of contact, immediately flush skin with plenty of water for at least 15 minutes
while removing contaminated clothing and shoes. Wash clothing before reuse. Clean
shoes thoroughly before reuse. Get medical attention immediately.
Call medical doctor or poison control center immediately. Move exposed person to fresh
air. If not breathing, if breathing is irregular or if respiratory arrest occurs, provide
artificial respiration or oxygen by trained personnel. Loosen tight clothing such as a
collar, tie, belt or waistband. Get medical attention immediately.
Section 4. First aid measures
Eye contact
Skin contact
Inhalation
Ingestion
:
:
:
:
No action shall be taken involving any personal risk or without suitable training.If it is suspected that fumes are still present,
the rescuer should wear an appropriate mask or self-contained breathing apparatus.It may be dangerous to the person
providing aid to give mouth-to-mouth resuscitation.
Frostbite
:
Try to warm up the frozen tissues and seek medical attention.
Page: 2/9
Build 1.1
Nonflammable Gas Mixture: Carbon Monoxide / Hydrogen Sulfide / Methane / Nitrogen / Oxygen
Lowest known value: 260°C (500°F) (hydrogen sulphide).
Non-flammable.
Decomposition products may include the following materials:
carbon dioxide
carbon monoxide
nitrogen oxides
sulfur oxides
Lowest known value: Closed cup: -188.15°C (-306.7°F). (methane)
Greatest known range: Lower: 12.5% Upper: 74.2% (carbon monoxide)
Use an extinguishing agent suitable for the surrounding fire.
Section 5. Fire-fighting measures
Flammability of the product
Auto-ignition temperature
Flash point
Flammable limits
Products of combustion
Fire-fighting media and
instructions
Apply water from a safe distance to cool container and protect surrounding area. If
involved in fire, shut off flow immediately if it can be done without risk.
Contains gas under pressure. In a fire or if heated, a pressure increase will occur and
the container may burst or explode.
Special protective
equipment for fire-fighters
Fire-fighters should wear appropriate protective equipment and self-contained breathing
apparatus (SCBA) with a full face-piece operated in positive pressure mode.
:
:
:
:
:
:
:
Immediately contact emergency personnel. Keep unnecessary personnel away. Use
suitable protective equipment (section 8). Shut off gas supply if this can be done safely.
Isolate area until gas has dispersed.
Immediately contact emergency personnel. Stop leak if without risk. Note: see section 1
for emergency contact information and section 13 for waste disposal.
Environmental precautions
Section 6. Accidental release measures
:
Avoid dispersal of spilled material and runoff and contact with soil, waterways, drains
and sewers.
Personal precautions
:
Methods for cleaning up
:
Cylinders should be stored upright, with valve protection cap in place, and firmly secured
to prevent falling or being knocked over. Cylinder temperatures should not exceed 52 °C
(125 °F).
Use only with adequate ventilation. Wash thoroughly after handling. High pressure gas.
Do not puncture or incinerate container. Use equipment rated for cylinder pressure.
Close valve after each use and when empty. Keep container closed. Avoid contact with
skin and clothing. Avoid contact with eyes. Protect cylinders from physical damage; do
not drag, roll, slide, or drop. Use a suitable hand truck for cylinder movement.
Section 7. Handling and storage
Handling
Storage
:
:
Use only with adequate ventilation. Use process enclosures, local exhaust ventilation or
other engineering controls to keep worker exposure to airborne contaminants below any
recommended or statutory limits.
Section 8. Exposure controls/personal protection
Engineering controls
Use a properly fitted, air-purifying or air-fed respirator complying with an approved
standard if a risk assessment indicates this is necessary. Respirator selection must be
based on known or anticipated exposure levels, the hazards of the product and the safe
working limits of the selected respirator.
Safety eyewear complying with an approved standard should be used when a risk
assessment indicates this is necessary to avoid exposure to liquid splashes, mists or
dusts.
Personal protective equipment for the body should be selected based on the task being
performed and the risks involved and should be approved by a specialist before handling
this product.
Personal protection
Eyes
Skin
Respiratory
:
:
:
:
The applicable standards are (US) 29 CFR 1910.134 and (Canada) Z94.4-93
Page: 3/9
Build 1.1
Nonflammable Gas Mixture: Carbon Monoxide / Hydrogen Sulfide / Methane / Nitrogen / Oxygen
nitrogen
Oxygen Depletion [Asphyxiant]
oxygen
carbon monoxide
ACGIH TLV (United States, 2/2010).
TWA: 29 mg/m³ 8 hour(s).
TWA: 25 ppm 8 hour(s).
NIOSH REL (United States, 6/2009).
CEIL: 229 mg/m³
CEIL: 200 ppm
TWA: 40 mg/m³ 10 hour(s).
TWA: 35 ppm 10 hour(s).
OSHA PEL (United States, 6/2010).
TWA: 55 mg/m³ 8 hour(s).
TWA: 50 ppm 8 hour(s).
OSHA PEL 1989 (United States, 3/1989).
CEIL: 229 mg/m³
CEIL: 200 ppm
TWA: 40 mg/m³ 8 hour(s).
TWA: 35 ppm 8 hour(s).
methane
ACGIH TLV (United States, 2/2010).
TWA: 1000 ppm 8 hour(s).
hydrogen sulphide
ACGIH TLV (United States, 2/2010).
STEL: 5 ppm 15 minute(s).
TWA: 1 ppm 8 hour(s).
NIOSH REL (United States, 6/2009).
CEIL: 15 mg/m³ 10 minute(s).
CEIL: 10 ppm 10 minute(s).
OSHA PEL 1989 (United States, 3/1989).
STEL: 21 mg/m³ 15 minute(s).
STEL: 15 ppm 15 minute(s).
TWA: 14 mg/m³ 8 hour(s).
TWA: 10 ppm 8 hour(s).
OSHA PEL Z2 (United States, 11/2006).
AMP: 50 ppm 10 minute(s).
CEIL: 20 ppm
Product name
Consult local authorities for acceptable exposure limits.
Personal protection in case
of a large spill
:
Self-contained breathing apparatus (SCBA) should be used to avoid inhalation of the
product. Full chemical-resistant suit and self-contained breathing apparatus should be
worn only by trained and authorized persons.
Chemical-resistant, impervious gloves complying with an approved standard should be
worn at all times when handling chemical products if a risk assessment indicates this is
necessary.
Hands
:
-85.49°C (-121.9°F) This is based on data for the following ingredient: hydrogen
sulphide. Weighted average: -209.48°C (-345.1°F)
Highest known value: 1.19 (Air = 1) (hydrogen sulphide). Weighted average: 0.98 (Air
= 1)
Lowest known value: -146.9°C (-232.4°F) (nitrogen).
Melting/freezing point
Section 9. Physical and chemical properties
Critical temperature
Vapor density
:::
Gas Density (lb/ft 3)
:
Weighted average: 0.07
The product is stable.
Extremely reactive or incompatible with the following materials: reducing materials and
combustible materials.
Under normal conditions of storage and use, hazardous polymerization will not occur.
Under normal conditions of storage and use, hazardous decomposition products should
not be produced.
Section 10. Stability and reactivity
Stability and reactivity
Incompatibility with various
substances
Hazardous decomposition
products
Hazardous polymerization
:
:
:
:
Page: 4/9
Build 1.1
Nonflammable Gas Mixture: Carbon Monoxide / Hydrogen Sulfide / Methane / Nitrogen / Oxygen
Section 11. Toxicological information
Specific effects
Carcinogenic effects
No known significant effects or critical hazards.
Mutagenic effects
No known significant effects or critical hazards.
Reproduction toxicity
No known significant effects or critical hazards.
No specific information is available in our database regarding the other toxic effects of
this material to humans.
Contains material which may cause damage to the following organs: blood, lungs, the
nervous system, heart, cardiovascular system, upper respiratory tract, eyes, central
nervous system (CNS).
Chronic effects on humans
Other toxic effects on
humans
:
:
Toxicity data
:
:
:
carbon monoxide
TDLo Intraperitoneal
Rat
35 mL/kg
-
LC50 Inhalation
Vapor
Rat
13500 mg/m3
15 minutes
LC50 Inhalation
Vapor
Rat
1900 mg/m3
4 hours
LC50 Inhalation
Gas.
Rat
6600 ppm
30 minutes
LC50 Inhalation
Gas.
Rat
3760 ppm
1 hours
LC50 Inhalation
Gas.
Mouse
2444 ppm
4 hours
LC50 Inhalation
Gas.
Rat
1807 ppm
4 hours
hydrogen sulphide
LC50 Inhalation
Vapor
Rat
820 mg/m3
3 hours
LC50 Inhalation
Vapor
Rat
700 mg/m3
4 hours
LC50 Inhalation
Vapor
Rat
470 mg/m3
6 hours
LC50 Inhalation
Gas.
Rat
712 ppm
1 hours
LC50 Inhalation
Gas.
Mouse
634 ppm
1 hours
LC50 Inhalation
Gas.
Rat
444 ppm
4 hours
Product/ingredient name
Result
Species
Dose
Exposure
Section 12. Ecological information
Aquatic ecotoxicity
Product/ingredient name
Test
Species
Result
Exposure
hydrogen sulphide
-
Acute EC50 770 ug/L
Fresh water
Crustaceans Amphipod Crangonyx
richmondensis
ssp. lauren - 10
mm
48 hours
-
Acute EC50 540 ug/L
Fresh water
Crustaceans Amphipod Crangonyx
richmondensis
ssp. lauren - 10
mm
48 hours
-
Acute EC50 95 ug/L
Fresh water
Crustaceans Scud Gammarus
pseudolimnaeus 11 mm
2 days
-
Acute EC50 71 ug/L
Crustaceans 2 days
Page: 5/9
Build 1.1
Nonflammable Gas Mixture: Carbon Monoxide / Hydrogen Sulfide / Methane / Nitrogen / Oxygen
Environmental fate
:
Not available.
Environmental hazards
:
No known significant effects or critical hazards.
Toxicity to the environment
:
Not available.
Fresh water
Scud Gammarus
pseudolimnaeus 11 mm
-
Acute EC50 62 ug/L
Fresh water
Crustaceans Scud Gammarus
pseudolimnaeus 11 mm
2 days
-
Acute LC50 7 ug/L Fresh
water
Fish - Fathead
minnow Pimephales
promelas - Fry
96 hours
-
Acute LC50 4 ug/L Fresh
water
Fish - Lake
whitefish Coregonus
clupeaformis Yolk-sac fry
96 hours
-
Acute LC50 3.2 ug/L
Fresh water
Fish - Asian
redtail catfish Hemibagrus
nemurus
96 hours
-
Acute LC50 3 ug/L Fresh
water
Fish - Lake
whitefish Coregonus
clupeaformis Yolk-sac fry
96 hours
-
Acute LC50 2 ug/L Fresh
water
Fish - Lake
whitefish Coregonus
clupeaformis Yolk-sac fry
96 hours
-
Acute LC50 <2 ug/L
Fresh water
Fish - Yellow
perch - Perca
flavescens - Yolksac fry
96 hours
Products of degradation: carbon oxides (CO, CO2) and water, nitrogen oxides (NO, NO
2
etc.), sulfur oxides (SO2, SO3etc.).
:
Products of degradation
Section 13. Disposal considerations
Product removed from the cylinder must be disposed of in accordance with appropriate Federal, State, local
regulation.Return cylinders with residual product to Airgas, Inc.Do not dispose of locally.
Section 14. Transport information
2.2-DOT Classification
COMPRESSED GAS,
N.O.S.
Regulatory
information
UN number
Proper shipping
name
Class
Packing group
Label
Additional
information
UN1956
Not applicable (gas).
Page: 6/9
Build 1.1
Nonflammable Gas Mixture: Carbon Monoxide / Hydrogen Sulfide / Methane / Nitrogen / Oxygen
TDG Classification
2.2
UN1956
COMPRESSED GAS,
N.O.S.
Explosive
Limit and
Limited
Quantity
Index
0.125
Passenger
Carrying
Road or Rail
Index
75
Mexico
Classification
UN1956
COMPRESSED GAS,
N.O.S.
2.2
-
Not applicable (gas).
Not applicable (gas).
“Refer to CFR 49 (or authority having jurisdiction) to determine the information required for shipment of the
product.”
Section 15. Regulatory information
U.S. Federal regulations
Connecticut Carcinogen Reporting: None of the components are listed.
Connecticut Hazardous Material Survey: None of the components are listed.
Florida substances: None of the components are listed.
Illinois Chemical Safety Act: None of the components are listed.
Illinois Toxic Substances Disclosure to Employee Act: None of the components are
listed.
Louisiana Reporting: None of the components are listed.
Louisiana Spill: None of the components are listed.
Massachusetts Spill: None of the components are listed.
Massachusetts Substances: The following components are listed: NITROGEN;
OXYGEN (LIQUID); CARBON MONOXIDE; METHANE; HYDROGEN SULFIDE
TSCA 8(a) IUR: Not determined
United States inventory (TSCA 8b): All components are listed or exempted.
Clean Air Act (CAA) 112 regulated flammable substances: methane
Clean Air Act (CAA) 112 regulated toxic substances: hydrogen sulphide
State regulations
SARA 302/304/311/312 extremely hazardous substances: hydrogen sulphide
SARA 302/304 emergency planning and notification: hydrogen sulphide
SARA 302/304/311/312 hazardous chemicals: nitrogen; oxygen; methane; carbon
monoxide; hydrogen sulphide
SARA 311/312 MSDS distribution - chemical inventory - hazard identification:
nitrogen: Sudden release of pressure; oxygen: Fire hazard, Sudden release of pressure,
Delayed (chronic) health hazard; methane: Fire hazard, Sudden release of pressure;
carbon monoxide: Fire hazard, Sudden release of pressure, Immediate (acute) health
hazard, Delayed (chronic) health hazard; hydrogen sulphide: Fire hazard, Sudden
release of pressure, Immediate (acute) health hazard, Delayed (chronic) health hazard
:
:
SARA 313
Form R - Reporting
requirements
Hydrogen Sulfide
7783-06-4
0.001 - 1
Hydrogen Sulfide
7783-06-4
0.001 - 1
Supplier notification
:
:
United States
Product name
CAS number
Concentration
SARA 313 notifications must not be detached from the MSDS and any copying and redistribution of the MSDS shall
include copying and redistribution of the notice attached to copies of the MSDS subsequently redistributed.
Methane
Clean Air Act (CAA) 112 accidental release prevention - Flammable Substances:
Clean Air Act (CAA) 112 accidental release prevention - Toxic Substances:
Hydrogen Sulfide
Page: 7/9
Build 1.1
Nonflammable Gas Mixture: Carbon Monoxide / Hydrogen Sulfide / Methane / Nitrogen / Oxygen
Michigan Critical Material: None of the components are listed.
Minnesota Hazardous Substances: None of the components are listed.
New Jersey Hazardous Substances: The following components are listed:
NITROGEN; OXYGEN; CARBON MONOXIDE; METHANE; HYDROGEN SULFIDE
New Jersey Spill: None of the components are listed.
New Jersey Toxic Catastrophe Prevention Act: The following components are listed:
carbon monoxide; Hydrogen Sulfide
New York Acutely Hazardous Substances: The following components are listed:
Hydrogen sulfide
New York Toxic Chemical Release Reporting: None of the components are listed.
Pennsylvania RTK Hazardous Substances: The following components are listed:
NITROGEN; OXYGEN; CARBON MONOXIDE; METHANE; HYDROGEN SULFIDE
(H2S)
Rhode Island Hazardous Substances: None of the components are listed.
WARNING: This product contains a chemical known to the State of California to cause
birth defects or other reproductive harm.
CEPA Toxic substances: The following components are listed: Methane
Canadian ARET: None of the components are listed.
Canadian NPRI: The following components are listed: Carbon monoxide; Volatile
organic compounds; Hydrogen sulphide
Alberta Designated Substances: None of the components are listed.
Ontario Designated Substances: None of the components are listed.
Quebec Designated Substances: None of the components are listed.
WHMIS (Canada)
Class A: Compressed gas.
Class D-1A: Material causing immediate and serious toxic effects (Very toxic).
Class D-2A: Material causing other toxic effects (Very toxic).
Class D-2B: Material causing other toxic effects (Toxic).
:
Canada
Carbon Monoxide
No.
Yes.
No.
No.
Ingredient name
Cancer
Reproductive
No significant risk
level
Maximum
acceptable dosage
level
California Prop. 65
:
Section 16. Other information
MAY BE FATAL IF INHALED.
MAY CAUSE EYE AND SKIN IRRITATION.
CONTAINS MATERIAL THAT MAY CAUSE TARGET ORGAN DAMAGE, BASED ON
ANIMAL DATA.
CONTENTS UNDER PRESSURE.
Label requirements
:
Label requirements
:
Class A: Compressed gas.
Class D-1A: Material causing immediate and serious toxic effects (Very toxic).
Class D-2A: Material causing other toxic effects (Very toxic).
Class D-2B: Material causing other toxic effects (Toxic).
United States
Canada
Hazardous Material
Information System (U.S.A.)
2
0
0
*
Health
Flammability
Physical hazards
:
Page: 8/9
Build 1.1
Nonflammable Gas Mixture: Carbon Monoxide / Hydrogen Sulfide / Methane / Nitrogen / Oxygen
Notice to reader
To the best of our knowledge, the information contained herein is accurate. However, neither the above-named
supplier, nor any of its subsidiaries, assumes any liability whatsoever for the accuracy or completeness of the
information contained herein.
Final determination of suitability of any material is the sole responsibility of the user. All materials may present
unknown hazards and should be used with caution. Although certain hazards are described herein, we cannot
guarantee that these are the only hazards that exist.
0
0
2
National Fire Protection
Association (U.S.A.)
Health
Special
Instability
Flammability
:
Page: 9/9
Build 1.1
Loading...